Ingredients
2 ounces silver tequila, such as Patron Silver
1/2 ounce dry vermouth
2 tablespoons fresh pink-grapefruit juice, plus a wedge and a twist for serving
10 to 12 dashes grapefruit or orange bitters, such as Fee Brothers
Edible silver flakes (optional; available at nycake.com) and sanding sugar, for serving
Preparation
Fill a cocktail shaker halfway with ice. Add tequila, vermouth, grapefruit juice, and bitters. Cover and shake several times.
Stir together silver flakes and sugar on a small plate. Run grapefruit wedge along the rim of a chilled martini glass. Dip rim in sugar mixture to evenly coat. Strain tequila mixture into glass, add grapefruit twist, and serve.